S

Sir Revdal

Person

Author of a 1964 paper noting that time delays between gravitationally lensed images can measure universal expansion.

Mentioned in 1 video

The Universe Is Racing Apart. We May Finally Know Why.

The Universe Is Racing Apart. We May Finally Know Why.

PBS Space Time

Author of a 1964 paper noting that time delays between gravitationally lensed images can measure universal expansion.